weaver



Nm'w 3. 1925- 1,560,517

J. L. WEAVER APPARATUS FOR WOOD DISTILLATICN Film March 31, 1921 2 s-sheet l J. L WEAVER APPARATUS FQR WOOD DISTILLATZQN Filed amen 52, 1921 2 Sheets-$11001: 2

uliimmi mum . n v gwwntoz v kil -z! wall/(12' of cement, as indicated at 1. This Patented Nov. 3, 1925.

JOHN L. WEAVER, OF NEW DRLEANS, L OUISIANJ-l APPARATUS FOR WOOD DISTILLATION.

Application filed March 31, 1921. Serial No. 457,228.

To all whom it may concern lie it known that l. Jul-IN L. VEAVER, a citizen of the l nited States, residing at New Orleans, in the parish of Orleans and the State of Louisiana. hare invented certain new and useful improvements in Apparatus for Vood Distillation. of which the following is a specification.

This invention relates to a process and apparatus for the distillation of the volatile elements of wood. and more especially to the reduction of stumps of the species of pine found largely in the Gulf States. It has been found that the stumps-remaining on the cut-over pine lands of many of the Southern States contain largxe amounts of resin, turpentine. pine tar, pine oils, creosotcs. flotation oils, and other ingredients, as for example wood alcohol, which can be extracted by the gradual application of heat, leaving a residue of pure charcoal.

'lhese ingredients (lifter so in specific gravity that to properly secure them and to obtain the results aimed at, it is necessary that the stumps from which the material is to be obtained be subjected to a number of successive stages of heat, and that the temperature during the various stages be kept under perfect control. The main object of this invention is an apparatus by means of which this heat control may be obtained.

The invention also consists in the novel features of construction hereinafter described, pointed out in the claims, and shown in the accompanying drawings, in which Figure 1 is a side view of the complete apparatus, partly in elevation and pfllrtly in section,

Figure 2 is a section on the line it---t2 of Fig. l.

Figure 3 Figure 4.

Figure 4 is a section on the lint Fig. 2.

In carrying out the invention I c: a snitablefirm masonry foundation vided with a central recess into who tends a track 2 on which travels a ill To one side of this central recess the to tion is again recessed to form a tur combustion chamber for producing l".

uses of combustion, in which chambe coated a grate 4. Mounted on this {condo is a section on the'line --3of tion 1 is a retort 5, of brick, tile, stone or other suitable materials.

This retort is provided with double walls both being; upwardly converging; and eir cular. the inner wall 6 being about -11: inches thick and spaced about ten inches from the outer wall, which latter is about a foot in thickness. In the chamber between these two walls is a helical, screw-shaped partition 8, and as the space between the inner and outer walls of the retort communicates "with the combustion chamber, this windingparti-- tion terms in said space a helical or screw lilce flue,

A smoke stack 9 extendsup one side of the retort and communicates by means ct openings 10 with the flue above mentioned each opening being immediately below one of the convolutions oi. the partition or flue wall 8. As shown these openings are three in number and products of combustion passing out through the nppermostot the openinc't 10 will circle around the retort three l'llfi tfi. The two lower openings 10 are pro vided with hinged dampers 11 and operating handles 12.

Tabs distillation chamber is formed by a steel tank 13 which fits snugly in the retort -5, 'Fbrming a metal lining for it, and which extends slightly above it; It is provided with a removable cap or cover 13 Its bottom covers the central recess in the toundation and is provided with hinged doors 1.4- normally held in a horizontal or closed posi tion by a draw bar 11..

At one side of the retort is placed a con (lensing tank 16 having a condensing; coil 18. A'pipe 17 leads from the upper pro-- jecting portion of the distillation(chamber 13 into the tank 16 and communicates with the condensing: coil 18. The lower end of this coil drains into asmall tank 19 which discharges through a drawofl cook 20 into a suitable receptacle 21 It will be obvious 'from the drawings that the position of the dampers 11 will regulate the number of times the products of com- 1 bastion will encircle the retort before escaping to the stack 9, thereby regulating the surface area of the wall 6 exposed to direct contact with said products of combustion, and by regulating this I retain control of the temperature in the distillation chamber i the lowest temperature is of course ohif? produced and at two hundred and filly degrees 3. various essential oils As-Inore of the relort surface is brought int-o Contact with the "well 6 h the closing of the lower damper 11 the temperature rises, and at from two hnnclrco :nrl fifty to four hundred degrees (1 heavy oils, rosin, creosote, and the lihe, are given oil". With both dampers closed ancl. u temperaturerunning as high as six hundred degrees tar,

pitch and tar oils are extracted, and the resiclue, pure charcoal, is clumped by "the chopping or" the doors 1% into the truck 8, and thus removed. The cycle of operation then repeatedv In practical tests seven burnings have been halal from u retort dun ing a month of twenty eight working days.

From the above the practical advantages of the process and the zipper-Mus for carry inn it out will be obvious.

What I claim iS:-- l. in Wood distillation apparatus oi the kind clcscribecl. a distillation retort having Walls spaced apart 1. l'ielicol fiuc arranged between said Walls, a combustion chamber comrniuiicetiug with the lower end of said flue, 21 stock communicating ich the fine in (lifierent lzorizontol' planes, anal dampers regulating low oi products of combustion ihrougli said flue.

In Wood distillation emiiarstus of the hind,described the coz'obiimtion with. 21 die tillsbion. tort, oi a, helical flu a steel; coimuunicziting with the fine in different norlzonsa-l lanes, and clmn lers conirollingg coinniunic on between the steel: and the flue, the (ile-ri imrs being in (liilereni. lu'n'izoin tel pianos.

In stood distillation slfipiarstus of the hr'ztween said walls a moon? lzincl described, a distinct-ion rel-vols; lie-wing spaced. Walls, e mess receptacle listing with in the inner wall and pro iecting shove the same, inc-ens "for discharging charcoal through the bottom of said receptacle, a helical flue arranged between the walls and encircling said rccepfiscle, a stack connnnnh eating with the fine in clillerent horizontal planes, means for Supplheated colnnotation to the finer means for conlrollingthe circulation of the colnlmslion gases in the flue and. into she stack, and means for conveying from the receptacle the products of distillation.

In wood distillation apparatus of the hind describech u distillation retort l'lm'ing nulls spncecl apart, :x helical flue arranged con'ilmstion chamber coinnmnicating with the lower curl of the flue, a stack communicating with the flue in different horizontal planes, and. dampers regulating flow of products of combustion through said flue.

5. In wood distillciion apparatus of the kind described. the con'ibinarion with a, distillation retort, oil a helical flue, a stack comn'mnicul'ing with the flue in different horizontal planes, and dzunpers in vertical align ment for controlling communication hem-eon the slack and the flue.

6. In wood distillation apps stus of the kind described, comprising a distillation retort having upwardly converging, circular and spaced walls, a metal receptacle lib ling within the inner wall and projecting shove the me, nrenns for (lischsiging churconl il'irougzh the bottom of said. receptacle, a helical line arranged between the walls and encircling snlcl reccprsole, a stuck colnrnunis eating with the flue in (lifi'erent horizontal planes, means "for supplying llQlliQil co Abusto the flue, means for controlling the circulation ol' the heated combustion gases in the line and into the staclc, and means for COIWQf-Jlllff from the rcccptecle the prodi ms of dissolution.

c .ioony Whereo l niy fill 

